Inventor
Pengfei Ma
Inventor
Naperville, IL, US
Overview
Patents· 46 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F15Bprimary
F15BSystems acting by means of fluids in general41%
E02FDredging29%
Y10TTechnical subjects covered by former us classification5%
F02NStarting of combustion engines3%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles2%
B60WConjoint control of vehicle sub-units of different type or different function2%
F04BPositive-displacement machines for liquids2%
F16KValves2%
H04LTransmission of digital information, e.g. telegraphic communication2%
Y02TClimate change mitigation technologies related to transportation2%
PatentTitleYear
10,385,892System and method for providing hydraulic power201910,337,532Split spool valve201910,320,660Method and device for transmitting forwarding parameter20199,973,352Information sending method, apparatus, and communications system20189,951,795Integration of swing energy recovery and engine anti-idling systems20189,945,396Fluid systems for machines with integrated energy recovery circuit20189,897,120'Hydraulic system having energy recovery'20189,829,014Hydraulic system including independent metering valve with flowsharing20179,809,958'Engine assist by recovering swing kinetic energy'20179,745,940'Machine having hydraulic start assist system'20179,618,014'Implement system having hydraulic start assist'20179,556,591'Hydraulic system recovering swing kinetic and boom potential energy'20179,458,604'Hybrid apparatus and method for hydraulic systems'20169,388,829'Hydraulic control system having swing motor energy recovery'20169,366,269'Hydraulic accumulator health diagnosis'20169,328,744'Hydraulic control system having swing energy recovery'20169,290,911'Energy recovery system for hydraulic machine'20169,290,912'Energy recovery system having integrated boom/swing circuits'20169,279,236'Electro-hydraulic system for recovering and reusing potential energy'20169,261,118'Boom cylinder dig flow regeneration'20169,139,982'Hydraulic control system having swing energy recovery'20159,091,286'Hydraulic control system having electronic flow limiting'20159,086,061'Energy recovery hydraulic system'20159,086,081'Hydraulic control system having swing motor recovery'20159,068,575'Hydraulic control system having swing motor energy recovery'20158,997,479'Hydraulic control system having energy recovery'20158,919,113'Hydraulic control system having energy recovery kit'20148,850,806'Hydraulic control system having swing motor energy recovery'20148,833,143'Hydraulic accumulator pre-charge pressure detection'20148,776,511'Energy recovery system having accumulator and variable relief'20148,752,371'Independent metering valve with flow limiter'20148,479,504'Hydraulic system having an external pressure compensator'20138,424,836'Bidirectional force feedback poppet valve'20137,958,970'Acceleration sensor calibrated hoist positioning'20117,908,852'Control system for recovering swing motor kinetic energy'20117,905,089'Actuator control system implementing adaptive flow control'20117,735,517'Rotary-actuated electro-hydraulic valve'20107,302,797'Hydraulic system having a post-pressure compensator'20077,269,944'Hydraulic system for recovering potential energy'20077,251,935'Independent metering valve control system and method'20077,243,493'Valve gradually communicating a pressure signal'20077,204,185'Hydraulic system having a pressure compensator'20077,204,084'Hydraulic system having a pressure compensator'20077,194,856'Hydraulic system having IMV ride control configuration'20077,121,189'Electronically and hydraulically-actuated drain value'20067,059,126'System for preventing swing wag for a work machine with a boom assembly'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2019Patents assigned to CATERPILLAR INC (35)· patent assignee history
2006–2007Patents assigned to CATERPILLAR MITSUBISHI LTD (8)· patent assignee history
2006–2019Based in Naperville, IL, US· patent location history
2006Based in Lisle, IL, US· patent location history
2011Based in Henan, CN· patent location history
2013–2016Patents assigned to MA PENGFEI (12)· patent assignee history
2014–2016Patents assigned to SHANG TONGLIN (9)· patent assignee history
2014–2016Patents assigned to ZHANG JIAO (7)· patent assignee history
2018Based in Beijing, CN· patent location history
2019Based in Shenzhen, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CATERPILLAR INC | 35 | 2006–2019 |
| MA PENGFEIself | 12 | 2013–2016 |
| SHANG TONGLIN | 9 | 2014–2016 |
| CATERPILLAR MITSUBISHI LTD | 8 | 2006–2007 |
| ZHANG JIAO | 7 | 2014–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Naperville, Illinois, US | 42 | 2006–2019 |
| Shenzhen, CN | 1 | 2019 |
| Beijing, CN | 1 | 2018 |
| Henan, CN | 1 | 2011 |
| Lisle, Illinois, US | 1 | 2006 |